Previous versions of JBoss could be configured by copying files to the correct place. Each server in the cluster had identical config, this made configuring JBoss just a case of running rsync with files that you had an interest in.
Consider jboss-log4j.xml which was one file you could copy to setup logging. Now to setup logging we need to hack standalone.xml with XSLT or some tool that we dont yet have in our simple deployment system.
Previously we could rsync a new file to each server in the cluster and it would apply the new logging at runtime. Now we would have to updates standalone.xml at runtime which is not something that seems safe.
Adding a DataSource used to be a case of copy driver jar to /lib, copy -ds.xml to /deploy that process is now complicated.
Port bindings ditto.
JMS ditto.

Is there any way the monolithic config could be split up? most importantly bringing back external runtime configurable log4j config.